private void chooseTwoNodes(MouseEventArgs e)
{
//find which nodes was clicked
if (nodeClickedFirst == null)
{
nodeClickedFirst = graph.whichNodeWasClicked(new Point(e.X, e.Y));
if (nodeClickedFirst != null)
nodeClickedFirst.drawNode(paintBox, Color.Black, graph.NodeSelectedColor);
}
else
{
if (nodeClickedSecond == null)
{
nodeClickedSecond = graph.whichNodeWasClicked(new Point(e.X, e.Y));
if (nodeClickedSecond != null)
nodeClickedSecond.drawNode(paintBox, Color.Black, graph.NodeSelectedColor);
}
}
// if two nodes was clicked - do something
if (nodeClickedFirst != null && nodeClickedSecond != null)
{
switch (stateOfForm)
{
case stateEnum.stateEdgeAdding:
graph.addEdge(nodeClickedFirst, nodeClickedSecond);
break;
case stateEnum.stageShortWayFinding:
if (!graph.shortPathCalculation(nodeClickedFirst, nodeClickedSecond))
infoUpdate("PathNotExistS");
else
infoUpdate("InfoTextDefaultS");
break;
}
nodeClickedFirst = null;
nodeClickedSecond = null;
}
}
